Diffusion apparatus



(No Model.)

S. FARON. DIPFUSION'APPARATUS.

INVENTOI? Patented Aug. 9, 1892.

QW E S S M H W 4 TTORNEYS ma mmnls PETERS co, mn'rwunm UNITED STATES PATENT OFFICE.

SAMUEL FARON, OF PAHALA, KAU, HAWAII.

DIFFUSION APPARATUS.

SPECIFICATION forming part of Letters Patent N 0. 480,571, dated August 9, 1892.

Application filed April 12, 1892. Serial No. 428,811. (No model.)

To aZZ whom it may concern.-

Be it known that I, SAMUEL FARON, of Pahala, Kan, Hawaiian Islands, have invent ed a new and Improved Apparatus for Extracting Cane-Juice, of which the following is a full, clear, and exact description.

My invention is an improvement in that class of apparatus for extracting juice from sugar-cane in which the cane is subjected to pressure by successive sets of rolls and the light or thin juice obtained by the last set of rolls is carried back and mingled with the denser and heavier juice extracted by the first set of rolls.

The invention is embodied in the construction, arrangement, and combination of parts, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional side elevation of the apparatus, and Fig. 2 is a plan view of the same.

The cane-j nice extractor is provided with a series of grinding-mills A, B, C, and D, of which the grinding-mill A is preferably provided with three rollers, while the others contain only two. The several mills are connected with each other by suitably-constructed elevators E E E so that the cane is transmitted from one to the other, to be finally discharged froin the last mill D through an outlet F. A spray of hot water can be introduced upon the discharge of the mill 0 by means of a suitably-arranged pipe G, connected with the source of water-supply. The juice from the several mills passes into the outlets H, H, H and H and connection is established between the outlet H and a perforated pipe I, extending across the discharge of the mill B, as is plainly shown in Fig. 1, so that the juice from the said outlet H can pass through the pipe I by suitable pumping machinery J, to be discharged upon the discharge of the mill B.

The operation is as follows: The cane is first passedthrough themillAandthentransmitted by the elevator E to the mill B. The juice pressed out of the cane by the mills A and B collects in the outlets H and H, respectively, and the cane aft-er leaving the mill B usually contains about fifteen to twenty per cent. of cane-juice. The cane then passes up the elevator E and through the mill 0, to be again subjected to pressure. After passing through the mill 0 a spray of hot or cold water equal to from three to four times the quantity of the normal juice contained in the bagasse from the mills A and B is now let into the bagasse by the pipe G, thus reducing the density of the juice at that point from 10 to about 1.5 Baum. A portion of this juice, equal to the amount of water used, after passing through the mill D is pumped or brought by other means back and goes in a spray upon the bagasse coming from the mill B by passing through the pipe I upon the bagasse, thus reducing a portion of the juice in the bagasse at that point from 10 to about 4.37 Baum. Thebagassecontaining this juicenow passes by the elevator E to the mill 0, where a quantity equal to the amount of light juice brought from the mill D goes to the boiling house, and the portion left in the bagasse now passes upon the mill D after receiving a spray of water through the pipe G, so that the juice in the bagasse is reduced at this point from 4.37" to 1.09 Baum. This operation is continued, so that in a few minutes the juice in the bagasse going from the mill D to the furnace is reduced to a density of about .76 Baum. Bagasse used as afuel and containing this quantity of saccharine matter more than compensates for the loss of the sugar in securing better quality of bagasse as a fuel.

In other apparatus of this particular class the juice expressed from all the mills of a set, save the first, has been elevated into a tank by means of a pump and suitable pipes connected with it. Thus as many tanks and pumps were required as there were mills or sets of rolls, save one, which involved corresponding expense, as well as rendered the apparatus verybulky. Bymyimprovementldispense with all such tanks and require but one pump, since all the receiving vats or outlets are directly connected by pipes, and the pump is attached to that one of the pipes which extends between the last mill and the adjacent one, whence a discharge-pipe leads directly to one of the first mills of the series.

Having thus described my invention, I

outlets, a pump J, attached to one of said 10 pipes at a point between the last two outlets H and H of the series and leading thence directly to the mill B, as shown and described.

SAML. FARON. Witnesses:

M. MALAKANA, WILLIAM LENBERGE. 

